2100012127 has 2 divisors, whose sum is σ = 2100012128. Its totient is φ = 2100012126.

The previous prime is 2100012121. The next prime is 2100012157. The reversal of 2100012127 is 7212100012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2100012127 - 2⁷ = 2100011999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2100012127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100012121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050006063 + 1050006064.

It is an arithmetic number, because the mean of its divisors is an integer number (1050006064).

Almost surely, 2^2100012127 is an apocalyptic number.

2100012127 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100012127 is an equidigital number, since it uses as much as digits as its factorization.

2100012127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 2100012127 is about 45825.8892657851. The cubic root of 2100012127 is about 1280.5816299960.

Adding to 2100012127 its reverse (7212100012), we get a palindrome (9312112139).

The spelling of 2100012127 in words is "two billion, one hundred million, twelve thousand, one hundred twenty-seven".